Yoshiki Kajiwara, Shiro Oka, Shinji Tanaka, Takahiro Nakamura, Shoichi Saito, Yosuke Fukunaga, Manabu Takamatsu, Hiroshi Kawachi, Kinichi Hotta, Hiroaki Ikematsu, Motohiro Kojima, Yutaka Saito, Masayoshi Yamada, Yukihide Kanemitsu, Shigeki Sekine, Shinji Nagata, Kazutaka Yamada, Nozomu Kobayashi, Soichiro Ishihara, Yusuke Saitoh, Kenji Matsuda, Kazutomo Togashi, Koji Komori, Megumi Ishiguro, Toshio Kuwai, Takashi Okuyama, Akihiro Ohuchi, Shinobu Ohnuma, Kazuhiro Sakamoto, Tamotsu Sugai, Kenji Katsumata, Hiro-O Matsushita, Hiro-O Yamano, Hirotsugu Eda, Toshio Uraoka, Naohiko Akimoto, Hirotoshi Kobayashi, Yoichi Ajioka, Kenichi Sugihara, Hideki Ueno
BACKGROUND AND AIMS: Since 2009, the Japanese Society for Cancer of the Colon and Rectum guidelines have recommended that tumor budding and submucosal invasion depth, in addition to lymphovascular invasion and tumor grade, be included as risk factors for lymph node metastasis (LNM) in patients with T1 colorectal cancer (CRC). In this study, a novel nomogram was developed and validated by usirge-scale, real-world data, including the Japanese Society for Cancer of the Colon and Rectum risk factors, to accurately evaluate the risk of LNM in T1 CRC...
June 2023: Gastrointestinal Endoscopy